525312616 has 8 divisors (see below), whose sum is σ = 984961170. Its totient is φ = 262656304.

The previous prime is 525312587. The next prime is 525312649. The reversal of 525312616 is 616213525.

It can be written as a sum of positive squares in only one way, i.e., 362750116 + 162562500 = 19046^2 + 12750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32832031 + ... + 32832046.

Almost surely, 2^525312616 is an apocalyptic number.

It is an amenable number.

525312616 is a deficient number, since it is larger than the sum of its proper divisors (459648554).

525312616 is a wasteful number, since it uses less digits than its factorization.

525312616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65664083 (or 65664079 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 525312616 is about 22919.6992999472. The cubic root of 525312616 is about 806.8744130216.

Subtracting 525312616 from its reverse (616213525), we obtain a palindrome (90900909).

The spelling of 525312616 in words is "five hundred twenty-five million, three hundred twelve thousand, six hundred sixteen".